Finding the Fourth Proportional to 1,353.16, 1,867.51 and 763.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.16 : 1,867.51 = 763.58 : x
2. Step 2: Convert to fraction form
   1,353.16/1,867.51 = 763.58/x
3. Step 3: Cross multiply
   1,353.16x = 1,867.51 × 763.58
4. Step 4: Simplify right side
   1,353.16x = 1,425,994.61
5. Step 5: Solve for x
   x = 1,425,994.61/1,353.16
6. Step 6: Final answer
   x = 1,053.82